The tag should be in the trunk-on the passenger side, below the back window if your car is a sedan. On the wagons it should be located in the spare tire well. The tag will not specify by type name but rather as "steering gear 1" or "steering gear 2". Beyond that--if your tie rods have a rubber disc at the outer ends that the boot fits over you have a ZF----if the boots reduce in size to the tie rod shaft size, it's a Cam Gear. -- Dave